... leads 1ECG901A machine 1 channel2,Build in rechargeable Ni-MH battery3,Chinese/English language4,Simultaneous 12 leads Dimension: ... net)Single channel with measurement reportBuild in rechargeable Ni-MH batteryChinese/English languageSimultaneous 12 leads320X240 graphic LCD, 3. ... 50/60Hz±1Hz;30VADC : 12V(1500mAh) rechargeable Ni-MH batteryFuseAC extend T500mA/125V 5x20mmAC extend T250mA/250V 5x20mmAC ...